02. d block electron configuration for ions and oxidation stages
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9 Terms
Describe the filling of 3d and 4s orbitals
When empty 3d has more energy than 4s so 4s filled first
Describe the emptying of 3d and 4s orbitals
When filled 3d has less energy than 4s so 4s emptied first
What are the most common oxidation states of chromium?
+3 +6
What are the most common oxidation states of manganese?
+1 to +7
What are the most common oxidation states of iron?
+2 and +3
What are the most common oxidation states of cobalt?
+2 and +3
What are the most common oxidation states of copper?
+1 and +2
Why does the d block have a range of oxidative states?
Energies in 4s and 3d are similar so electrons can be removed from each
How can higher oxidation states of the d block be achieved?
When compounds are formed, energy released in bonds can remove further electrons